George hayes



(No Model.)

` Gr. HAYES.

METALLIC LALTHING. No. 416,165. Patented Dec. 3, l1889.

Mnesseml nvenm' y Mgg UNITED STATES PATENT OEEICE.

GEORGE HAYES, on NEw YORK, N. Y.

METALLIC LATHlNG.

SPECIFICATION forming `part. of Letters Patent No. 416,165, dated December 8, 1889. Application tiled October l, 1888. Serial No. 286,901. (No model.) Patented in England October 23, 1888, No.15,285; in France October 26,1888, No. 193,756; in Belgium October 26, 1888, No.v 83,740; in Italy October 26, 1888,

Canada January 23,1889,No. 30,611.

To all whom t may con/cern.-

Be it known that I, GEORGE HAYES, a citizen of the United States, and a resident of the city, county, and State of New York, have invented a new and useful Metallic Lathing, (for which I have' obtained patents in the following foreign countries: Great Britain, October 23, 1888, No. 15,235; France, October 26, 1888, No. 193,756; Belgium, October 2G, 1888, No. 83,740; Italy, October 26, 1888, No. 24,317, and Canada January 23, 1889, No. 30,611,) of which the following is a specifica tion.

My invention consists of a sheet or piece of sheet metal having at near intervals throughout its extent oblong apertures of peculiar formation, each opening having been formed by making an incision through the sheet metal in clean-cut line and (without removing any portion of the metal during the operation) forcing outwardly to four sides, or two sides and two ends, the edge metal and giving the raised metal a curved shape or backward bend with its convexity toward the opening,.the curve continuing backward to suficient extent to constitute 'the projecting metal, ahook or barb under and behind which the plaster may find lodgment and become clinched, thereby held tothe surface of the sheet..

It further consists of a sheet or piece of sheet metal provided with the aforesaid oblong apertures located `at near intervals throughout, each opening having its four sides (or two sides and two ends) cut to the desired shape and curved or bent outwardly and backwardly as tongues or lips, their conveX surfaces facing each other, with the opening between, their convexity commencing at the back plane of the sheet and asbl-ought forward outwardly the curveof such nat-ure as to bring the tongues toward each other, with their1 nearest points at about half their heights or projection, whereby is produced between them and from their nearest points toward the back plane of the sheet a dovetail mold or cavity, widest at the back, into and through which the plaster will set and form itself into a perfect dovetail key, lock-s ing itself to the sheet by means of the opene No. 24,317, and in manner.

It also consists of a combination of two of said clean-cut and backwardly-benttongues or hooks triangularly shaped and adjacently located--one being forced outwardly and backwardly from one opening and the other forced similarly from another opening-their concave faces opposite each other, their arrangement with regard to each other and proximity being such that the two serve in unison to constitute the space between them plaster will set, forming itself into a perfect dovetail key, becoming locked to the surface of the sheet.l

In the accompanying drawings, Figure 1 represents a face view of a piece of the sheet metal with a portion of the same covered with plaster. The apertures are shown at intervals with the edge metal turned outwardly. Where the saine are covered by plaster, they are shown by dotted lines. At the upper left-- hand corner the aperture is not shown as opened, but the lines representing the slits or incision-a straight line with two branching lines 'at each end of the straight line as terminals. Fig. 2 is a sectional view lengthwise the same sheet on the line w In the drawings, A indicates the sheet or piece of lathing, which may be of any desired dimensions.

B indicates the apertures thro ugh the sheet. -They are of oblong shape-and each have four regularlyfformed clean-cut tongues or lips. In forming said openings a straight cut or slit is made, as at a, with two branching or divergiu g cuts or slit-s at each end of the straight metal thus produced being forced outwardly and bent backwardly constitutes the four projecting tongues or lips. The operation is performed by a suitably-shaped die, which does the cutting and also turns outwardly and backwardly the edge metal with clean-cut edges until it assumes the form shown.

C indicates the side tongues, and D the end tongues.

Between the convex faces of the projecting tongues, from their nearest points to their a dovetail :mold or socket into which the,

cut, as at b, and the triangularly-shaped edge ings, each aperture being' formed in the same IOO base-line, is al space wider at back than front, forming, essentially, a dovetail mold, into which the plaster sets as a dovetail key.

E indicates plaster at the front of the lathing, and F that which has passed through the apertures B, and expanded at the back of the lathing forming knobs or hooks, also `securing the plaster to the lathing. All of the tongues become hooks, around, behind, and beneath which the plaster sets, affording additional means whereby the saine is elicotually secured to the lathing. It may also be seen by reference to the sectional View, Fig. 2, that between the concave faces of two of said tongues or hooks C, one from. one opening and the other from the adjacent opening, is another dovetail mold or socket (its back being the face of the sheet) into which the plaster is forced and set, shaping i-tself into another dovetail key securing the sarneto the sheet. 'lhus the plaster over the entire sheet is hooked and keyed at every point. The four tongues or projecting lips of the oblong Openings are clean cutl to their shape and with uniformity throughout the sheet, and not raised as burrs, (irregularly torn asunder with ragged edges) but of a regular outline, sothat plaster may fit and pack readily thereto.

The sheetsmaybe cut and bent to suit any desired location, and used to form columns,

pilasters, arches, niches, groins, dto.; also, they sided or oblong apertures at intervals throughmay ber applied externally to walls, especially to frame buildings, and thereby bothv outside `each aperture having at its. verge the four :clean-cutv projecting tongues, as herein set and-inside rendered fire-proof.

7h-atl claim as new, and desire tosecure by Letters Pat-ent of the United States, isf

l. A lathing of sheet metal, havingA rectangular or four-sided openings at intervals 1 y tion` of four projecting clean-cut tongues, each throughout, each opening having at its Vcifge acu-.r-Ved tongue of the metal, clean out, proj ected from the sheet ine forming the opening, the side edges of the tongue converging toward its free end in straight lines, ,and the tongue standing outwardly from the plane of the sheet with its convex face toward the opening, essentially as shown and described.

2. Sheet-metal lath-ing havin-g at intervals throughout tongued apertures of oblong rectinto which the plaster will set as a dovetail key, essentially as shown and described.

3. The metallic sheet-lath described with oblong openings formed by cutting through the sheet in a straight clean-cut line, as at a, also cutting through the sheet in the direction of the branching or diverging lines b at each end of the line a, and bending outwardly from the plane of the sheet the edge metal with a curve to constitute the four projecting tongues or lips, as and for the purpose herein set forth.

4. A lathin-g of sheet metal, having at intervals throughout apertures formed by cutting an incision, as a straight line,with two branching or V-shaped lines at each end of the straight line as terminals thereof, the incision clean cut, without jaggedness, and then bending outwardly and backwardly the edge metal to constitute four raised and projecting tongues, two triangular and two truncated, essentially as shown and described.

5. A lathing ofshcet metal", having at intervals throughout four-sided apertures, each aperture havingA at its Verge, standing outward from the plane of the sheet, four cleancut and positively-shaped tongues-or lips, two being pointed and two truncated, or having one straight edge parallel tothe plane of the sheet, essentially as shown and described.

6. Sheet-metal lathing providedv with fouro ut, arranged in diagonallines across the sheet,

shaped essentially as shown and described.

7. ln a sheet-metal lathi-ng, theconiloinahaving been turned outwardly from the sheet 1 in forming the openings, shaped and arranged diagonally, as herein set forth, the arrangement of the tongues with regard to each other being such that a dovetailmold is produced with one of the tongues at each of four sides, the free endsof the` tongues approaching each other with their concave surfaces facing, so that plaster inserted between will setas a dovetailkey with the surface of the sheet at its back, essentially asI shown and described.

GEO. HAYES.

Witnesses:

FRED STEPHANIE, R. H. REILL.

IOO 

